Guangzhou Cement Prefabricated Housing

Guangzhou cement prefabricated housing is a construction method where components are prefabricated in factories and assembled on-site. It offers advantages such as fast construction, environmental protection, and energy efficiency, but also faces issues like quality disputes and seismic resistance concerns. The market has broad prospects and is supported by policies.

Advantages and Characteristics

1. Fast Construction Speed: Factory-prefabricated components are produced concurrently with on-site foundation work. Once delivered, components are directly assembled, significantly shortening the construction period. For example, the original demolition and reconstruction project of the old building in Sanlihe, Beijing, adopted a prefabricated solution and was capped in just 46 days, suitable for scenarios requiring rapid delivery such as resettlement housing and temporary housing.
2. Environmental Protection and Energy Efficiency: Factory-based production reduces construction waste and noise pollution, improves raw material utilization, and ensures controllable quality of prefabricated components. The energy efficiency of the housing is superior to traditional buildings, reducing long-term energy consumption.
3. Design Flexibility and Quality Control: Components can be customized according to needs, supporting diverse designs from single-story residences to multi-story apartments. The appearance can be personalized through decorative materials and colors. Production in factories is unaffected by weather, ensuring stable quality for each component.
4. High Safety: Hazardous operations are completed in factories, reducing on-site safety risks. Component precision is high (e.g., the production line in Longgang, Shenzhen, controls precision within 1-2 millimeters), minimizing construction errors.

Disputes and Issues

1. Quality Issues: Some projects have experienced problems such as cracking after delivery and exposed rusty rebar, as seen in the cracking case of prefabricated housing in Lingwu, Ningxia, highlighting insufficient supervision of construction specifications and material quality.
2. Seismic Performance Disputes: The seismic resistance at the connections of modular prefabricated buildings is weaker than that of cast-in-place buildings. Some projects adopt a "patchwork" design to meet assembly rate targets, affecting overall structural safety.
3. Industry Support Issues: Approval processes, pricing models, and acceptance standards do not match the "productization" and "integration" characteristics of prefabricated buildings, leading to inefficient management.

Market and Policies

1. Market Prospects: Accelerated urbanization drives housing demand growth. Prefabricated housing, with its high efficiency and potential for cost reduction, is widely applied in residential and commercial construction. Overseas exports have grown significantly, with export value surging by 45% in the first half of 2026. Prefabricated housing made in Shenzhen has been exported to Australia, Papua New Guinea, and other places.
2. Policy Support: Guangzhou has mandated that all new residential buildings adopt prefabricated construction from 2026 onwards, with the proportion of prefabricated buildings in new constructions reaching 80% by the end of 2030, providing long-term development guarantees for the industry.

Production Technology
The steel structure modular production line of China Construction Science and Industry Corporation in Huiyang, Huizhou, achieves precise robotic welding, producing 50 units per day. The concrete MiC flexible production line in Longgang, Shenzhen, produces one module every 20 minutes, with 70% of processes shifted to the factory, shortening the construction period by over 60%, demonstrating the advantages of intelligent production.